Clamping-tool.



W. D. HENDERSON.

OLAMPING TOOL.

APPLICATION FILED $EPT.2,1913.

Patented Feb. 16, 1915.

IN V EN TOR.

m 3 M w m 0 w W w my B WITNESSES:

715w Aw. a/MM ATTORNEY GLAMPING-TOOL.

WILIIBERT 1D. HENDERSON, OF SAN FRANCISCO, CALIFORNIA.

Specification of Letters Patent. Patgntcecfll Feel), T18, 1915.,

Application filed September 2, 1913. Serial No. 7816M.

To all whom it may concern:

-Be it known that T, VVILBERT D. HEN- DERSON, a Canadian subject of the King of Great Britain, residing at San Francisco, in

the county of San Francisco and State of California, have invented new and useful Improvements in Clamping-Tools, of which the following is a specification.

The object of the present invention is to provide an improved clamping tool for clamping wire ties or-bands, and especially for operating a clamping device which forms the subject of an application for United States Letters Patent, filed November 19, 1912, Serial Number 732,312.

Tn using ch-annelirons as uprights in partitions or Walls, it is necessary to secure in the channel-iron a wooden block, in which to drive the nails which support the ground for the trim. Heretofore, these wooden blocks have been secured by passing around the channel-iron and the wooden ground a short piece of wire to form a loop, and then twisting together the ends of the loops. In my improved clamping device above referred to I employ a short piece of wire, of which one terminal portion is bent to fit closely around the channel-iron, and the other terminal portion is cut and bent to form a prong which can engage the surface, remote from the channel-iron, of the wooden block. This latter terminal portion is then bent at right angles to the mediate portion of the wire so as to cause the prong to penetrate the ground, thus firmly securing the block to the channel-iron.

The object of the present invention is to provide a convenient and efi'ective tool for performing the last-named operation.

In the accompanying drawing, Figure 1 is a side view of my improved clamping tool extended; Fig. 2is' a. similar view-showing the clamping device contracted, showing also the clamping device therein; Fig. 3 is an end view of the clamping tool.

Referring to the drawing, 1 indicates jaws, to each ofwhich is pivoted, as shown at 2, an end of a sheet metal handle 3, said handles being also pivoted, together as .The inner terminal portion of each jaw is inserted between the jaws.

formed with an open-ended slot 8, through I which slots pass pins 9 secured to the respective handles. By reason of this construction, which, however, is well known,

these jaws can have a rectilinear movement to and from each other.

11 indicates a channel-iron, and 12 a wooden block which it is desired to secure to said channel-iron.

13 indicates my improved clamp formed.

of wire, of which one terminal portion 1 1 surrounds the channel-iron, and the other terminal portion carries a prong 16 adapted to be pressed into said block. -The inner side of each jaw 1, near its outer end, has a rectangular recess, the recess of one jaw being adapted to receive the terminal portion 14: of the clamp and the recess of the other jaw being adapted to likewise receive the other terminal portion of said clamp when it has been pressed by said jaw'into a rectangular form. Tn the center of the surface of said recessed portion of each jaw is a ll-shaped groove 17. The outer edge of each jaw has a shoulder 18 which can abut against the sheet metal of the handle at the point where it branches ofi to form pivot hearings on each side of the jaw, which shoulder 18 thus limits the outward movement of said jaws, due to said spring, to such an extent that the clamp can just be been so inserted between the jaws, and is received in their central grooves them-upon pressing the handles together, the jaws also move together with a rectilinear motion, the middle portion of the clamp sliding in the groove of one of the jaws parallel with the direction of motion, while the member of the clamp carrying the prong is pressed in When it has the other groove out said jaw at right angles 1 to the mediate portion of the clamp, and the prong is pressed into the wooden block.

By this implement the wire can be secured in position attaching the block to the channel-iron in, at the most, one-quarter of the time that has :torme'rly been required.

1. A clamping tool comprising two jaws, each having two straight working faces at right angles to each other, two working taces of the respective jaws being parallel with each other and the other two in the same plane as one another, and means for moving said jaws toward each other, while no maintaining said latter two Working faces in one plane.

2. A clamping tool comprising two jaws, each having two straight working faces at right angles to each other, two Working faces of the respective jaws being parallel with each other and the other two in the same plane as one another, all the Working faces having grooves in the same plane, and

10 means'for moving said jaws toward each other, while maintaining said latter two working faces in one plane.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WILBERT D. HENDERSON.'

Witnesses:

D. B. RICHARDS, FRANCIS M. WRIGHT. 

